21min · 12 servings Ingredients: 2 cups (250g) all-purpose flour (spoon & leveled) 1 cup (200g) granulated sugar 1/2 cup (41g) unsweetened natural cocoa powder 1 teaspoon baking soda 1/2 teaspoon salt 1 and 3/4 cups (315g) semi-sweet chocolate chips 2 large eggs, at room temperature 3/4 cup (185g) full fat sour cream or plain yogurt, at room temperature 1/2 cup (120ml) vegetable oil* 1/2 cup (120ml) whole milk, at room temperature 1 and 1/2 teaspoons pure vanilla extract Instructions 1. Preheat oven to 425°F (218°C). Spray a 12-count muffin pan with nonstick spray or use cupcake liners. This recipe yields about 14 muffins, so prepare a second muffin pan in the same manner or bake in batches and reserve leftover batter at room temperature for when the first batch is done.