Step-By-Step Instructions
- Preheat & pan: Heat oven to 350°F (175°C). Spray an 8.5×4.5-inch loaf pan and line with a parchment sling.
- Melt & bloom: In a large bowl, combine espresso powder and 3/4 cup (163 g) chips. Add boiling water; rest 5 minutes, then whisk smooth.
- Whisk wets: Whisk in brown sugar, melted butter, oil, and vanilla. Whisk in eggs until glossy and combined.
- Mix dries: Sift flour, cocoa, baking soda, and salt together; whisk to blend.
- Combine: Fold dry ingredients into wet just until no dry pockets remain.
- Stir-ins: Fold in remaining 3/4 cup (163 g) chocolate chips.
- Bake: Spread batter in pan; bake 65–75 minutes until a tester has a few moist crumbs (no wet batter).
- Cool & serve: Cool on a rack 1 hour, lift out, slice, and enjoy at room temp.
Why It Works + Pro Tips
- Flavor boost: Espresso intensifies chocolate without tasting like coffee.
- Texture insurance: Butter = flavor; a little oil = extra moist crumb even when chilled.
- Don’t overmix: Fold just to combine for a tender slice.
- Pan size swap: Two 5×3-inch mini loaves bake ~38–45 minutes.
- Glaze option: Pour warm ganache (equal parts hot cream + chopped chocolate) over the cooled loaf.
Storage: Wrap tightly; keep at room temp 3–4 days, or freeze slices up to 2 months (thaw at room temp).
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