| 1 | Preparation time: 0:40 Preheat oven to 350°F. |
| 2 | In a large mixing bowl, combine peanut butter and melted butter; stir until well blended. |
| 3 | Mix in sugar, eggs, and vanilla. |
| 4 | Combine flour with baking powder and baking soda. |
| 5 | Add to peanut butter mixture along with milk and chocolate chips. |
| 6 | Stir just until combined. |
| 7 | Spoon batter into 12 paper-lined 2 ? to 3-inch muffin tins. |
| 8 | Bake 20 to 25 mins, or until muffins spring back when lightly touched in center. |
| 9 | Serve warm or at room temperature. |
