Wisconsin Cheddar Cheese Popovers
4 tablespoons butter, divided
1 1/3 cups flour
1/4 teaspoon dry mustard
2/3 cup milk
2/3 cup water
1/2 cup (2 ounces) shredded Wisconsin Mild Cheddar cheese
Preheat oven to 375. Place eight 6 ounce custard cups on a baking sheet. Measure 1 1/2 teaspoons butter into each cup. Combine flour and mustard in large bowl. Gradually stir in water and milk until blended. Beat in eggs, one at a time, until mixture is smooth. Fold in cheese. Place baking sheet with custard cups in oven 3 to 5 minutes until butter melts and custard cups are hot. Fill custard cups 1/2 to 2/3 full with batter. Bake 45 minutes in preheated oven without opening the door. Remove from custard cups and serve immediately.