Moist banana muffins with dissolved coffee, vanilla and semisweet chocolate chips, with precise mixing and doneness cues.
Dietary labels are based on the listed ingredients. For allergies or celiac disease, verify every packaged ingredient and guard against cross-contamination.Original handwritten date: February 1, 2015. The original butter-rich formula is preserved; the banana amount is clarified by weight for repeatable results.
FROM JO’S RECIPE NOTES
Why this recipe works
The clarified 1 1/2 cups of very ripe banana gives the handwritten formula a repeatable moisture level.
Dissolving the coffee in a measured tablespoon of hot water prevents bitter granules in the crumb.
Creaming cool softened butter and sugar incorporates air before the heavy banana is added.
Folding the dry ingredients and chocolate chips only until uniform limits gluten development and keeps the crumb tender.
Ingredient notes
Bananas
Use about 3 medium, deeply speckled bananas and measure 1 1/2 cups (340 g) after mashing; banana size varies too much for count alone.
Coffee
Use instant coffee or espresso powder that dissolves fully. Brewed coffee is not a direct swap because it adds more liquid.
Butter
The handwritten formula uses a full cup. It must be softened to cool room temperature, not melted, so it can aerate with the sugar.
Flour
Weigh 270 g or spoon it lightly into the cup and level it. Packed flour makes banana muffins heavy.
Practical substitutions
These are conservative alternatives based on standard kitchen practice; results may vary from the original recipe.
Use decaffeinated instant coffee or espresso powder for the same mocha character with less caffeine.
Semisweet, dark or milk chocolate chips may be used, although milk chocolate makes the muffins sweeter.
Frozen bananas may be thawed and used with all their released liquid, then mashed and measured to 1 1/2 cups (340 g).
Troubleshooting
The muffins are dense
Confirm both leaveners are fresh, cream the butter properly and stop folding as soon as the final flour streak disappears.
The batter looks curdled
Banana can make the butter mixture look slightly separated. Continue with the dry ingredients; do not beat aggressively to force it smooth.
The centres seem wet
Test in a spot without melted chocolate. Continue baking until the top springs back and the tester has moist crumbs but no raw batter.
The muffins overflow
Divide the batter among all 12 standard cups and keep each near three-quarters full. Use a second pan for any excess rather than overfilling.
Storage and freezing
Cool completely before storing airtight at room temperature for up to 2 days or refrigerated for up to 4 days.
Freeze cooled muffins airtight for up to 2 months. Thaw covered at room temperature or warm gently until hot throughout.
THE BUTTER & BLOOM RECIPE
Mocha Chocolate Chip Banana Muffins
Print-friendly layout
Preparation time
20 min
Cooking time
24 min
Total time
49 min
Yield
12 muffins
Cuisine
North American
Updated
Ingredients
1 cup (227 g) unsalted butter, softened to cool room temperature
1 1/4 cups (250 g) granulated sugar
1 large egg, at room temperature
1 1/2 cups (340 g) mashed very ripe banana (about 3 medium bananas)
1 tablespoon instant coffee or espresso powder
1 tablespoon (15 mL) hot water
1 teaspoon pure vanilla extract
2 1/4 cups (270 g) all-purpose flour, spooned and levelled
1 teaspoon baking powder
1 teaspoon baking soda
1/4 teaspoon fine salt
1 cup (170 g) semisweet chocolate chips
Detailed directions for Mocha Chocolate Chip Banana Muffins
Prepare the oven and pan — Position a rack in the centre of the oven and preheat to 375°F (190°C). Line all 12 cups of a standard metal muffin pan with paper liners. Have the oven fully heated before the batter is mixed.Mocha Chocolate Chip Banana Muffins · AI instructional image: Preheat fully to 375°F (190°C) and line all 12 muffin cups.
Dissolve the coffee — Stir the instant coffee into the hot water in a small bowl until no granules remain. Let it cool for 5 minutes while you mash and measure 1 1/2 cups (340 g) banana.Mocha Chocolate Chip Banana Muffins · AI instructional image: Dissolve the coffee completely, cool it briefly and measure the mashed banana.
Cream the butter and sugar — Beat the softened butter and sugar with an electric mixer on medium speed for 2 to 3 minutes, scraping the bowl once, until lighter in colour and fluffy. The butter should indent easily but must not look shiny or melted.Mocha Chocolate Chip Banana Muffins · AI instructional image: Cream for 2 to 3 minutes while keeping the butter cool, not greasy.
Add the wet ingredients — Beat in the egg until incorporated. Add the mashed banana, cooled coffee mixture and vanilla, then mix on low just until even. The mixture may look slightly curdled from the banana; that is normal.Mocha Chocolate Chip Banana Muffins · AI instructional image: Mix in the wet ingredients only until even; a slightly curdled appearance is normal.
Whisk the dry ingredients — In a separate medium bowl, whisk the flour, baking powder, baking soda and salt for about 30 seconds. Break up every flour pocket so the leaveners are evenly distributed.Mocha Chocolate Chip Banana Muffins · AI instructional image: Whisk for 30 seconds to distribute both leaveners evenly.
Fold and portion — Add the dry mixture to the banana mixture in two additions, folding gently with a flexible spatula. When a few flour streaks remain, fold in the chocolate chips and stop as soon as the batter is uniform. Do not taste batter containing raw flour and egg. Divide evenly among the 12 liners, filling each about three-quarters full.Mocha Chocolate Chip Banana Muffins · AI instructional image: Fold only until uniform, then fill all 12 cups about three-quarters full.
Bake, cool and store — Bake for 20 to 24 minutes, rotating once only if the oven browns unevenly. The muffins are done when the domed tops spring back and a tester inserted away from melted chocolate comes out clean or with a few moist crumbs, never wet batter. Cool in the pan for 5 minutes, then transfer to a rack. Store completely cooled muffins airtight for up to 2 days, refrigerate for up to 4 days or freeze for up to 2 months.Mocha Chocolate Chip Banana Muffins · AI instructional image: Bake until the tops spring back and the tester shows moist crumbs but no wet batter.
Yes. Thaw them completely, include the released liquid and measure the mashed fruit to exactly 1 1/2 cups (340 g).
Will the muffins taste strongly of coffee?
The tablespoon of dissolved coffee creates a noticeable mocha note while banana and chocolate remain prominent. Decaffeinated instant coffee works too.
Why do I need both baking powder and baking soda?
The handwritten formula uses both. Whisking them evenly through the flour prevents concentrated bitter pockets and supports a uniform rise.
Can I taste the batter?
No. Health Canada advises against eating raw batter because uncooked flour and raw egg can contain harmful bacteria.
How do I test doneness around chocolate chips?
Insert the tester in two places near the centre, avoiding visible chocolate. Look for a springy dome and a clean tester or a few moist crumbs, never wet batter.
KEEP EXPLORING
Recipes to make next
Continue with these closely related recipes from The Butter & Bloom kitchen.
