Ingredients Muffin Batter • 145 g unsalted butter, melted • 240 g sugar • 2 eggs (about 100 g) • 180 ml buttermilk (homemade) • 35 g Greek yogurt • 12 g vanilla extract • 315 g all-purpose flour • 8 g baking powder • 4 g baking soda • 1 g salt • 100–120 g chocolate chips (ideally 70% cocoa) • Extra chocolate chips, for topping ⸻ Method Prepare buttermilk by mixing 180 ml warm milk with a teaspoon of vinegar. Let this sit for a while until the milk curdles. 1. Preheat oven to 220°C and line a muffin tray with paper liners. 2. In a bowl, whisk together: • Flour • Baking powder • Baking soda • Salt 3. In another bowl, whisk: • Melted butter • Sugar • Eggs • Buttermilk • Greek yogurt • Vanilla 4. Add the wet ingredients to the dry ingredients and mix gently until just combined. • Do not overmix. 5. Fold in the chocolate chips. 6. Divide batter evenly between liners, filling each about ¾ full. 7. Sprinkle extra chocolate chips on top. ⸻ Baking 1. Bake ...