Preheat oven to 400 degrees F. Coat 12 muffin cups with cooking spray.Advertisement
Pulse graham crackers into crumbs in a food processor or place in a large plastic bag and crush with a rolling pin. Whisk all-purpose flour, whole-wheat flour, cocoa, baking powder, baking soda and salt in a large bowl. Stir in graham cracker crumbs.
Whisk eggs, brown sugar and granulated sugar in a medium bowl until smooth. Add buttermilk, oil, coffee and vanilla and whisk until blended. Make a well in the dry ingredients; add the wet ingredients and stir with a rubber spatula until just combined. Gently fold in chocolate chips. Spoon the batter into the prepared muffin cups.
Bake the muffins until the tops spring back when touched lightly, 15 to 25 minutes. Let cool in the pan for 5 minutes. Loosen edges and turn muffins out onto a wire rack to cool.
Note: To avoid trans-fatty acids, look for brands of graham crackers that do not contain partially hydrogenated vegetable oil, such as Mi-Del chocolate snaps or Barbara's Chocolate Go-Go Grahams.
DIY Muffin Cups: Make your next batch of muffins or cupcakes the ultimate grab-and-go treat by lining your tin with muffin liners. No liners? No problem. Use 5-inch squares of parchment paper, coat each muffin cup with cooking spray, and push each square into the cups using a small can or bottle, pressing the paper up the sides. (It's OK if some of the paper is sticking out over the rim.) Fill each cup as directed.
2 1/2 other carbohydrate, 1 1/2 fat