01 - Preheat oven to 350°F. Line a 12-cup muffin tin with paper liners or grease lightly.
02 - Place pistachios in a food processor and pulse until finely chopped. Reserve 2 tablespoons for garnish.
03 - In a large bowl, whisk together flour, granulated sugar, brown sugar, baking powder, baking soda, salt, and chopped pistachios.
04 - In another bowl, whisk eggs, milk, yogurt, melted butter, and vanilla extract until smooth.
05 - Add wet ingredients to dry ingredients and gently fold until just combined. Do not overmix.
06 - Divide batter evenly among muffin cups, filling each about 3/4 full.
07 - Bake for 16–18 minutes, or until a toothpick inserted in the center comes out clean. Cool muffins in the tin for 5 minutes, then transfer to a wire rack to cool completely.
08 - In a small bowl, whisk powdered sugar, milk, and vanilla until smooth and pourable. Adjust milk for desired consistency.
09 - Drizzle glaze over cooled muffins and sprinkle with reserved chopped pistachios. Allow glaze to set before serving.