Combine yeast, water and 1 tsp. granulated sugar in small bowl. Warm 1/4 cup milk. Add to 1/4 cup (4 Tbsp.) butter in large bowl; stir until melted. Add 1-1/2 cups flour, remaining granulated sugar, salt, 2 eggs and yeast mixture; beat on low speed until blended. Gradually add 1-1/2 cups of the remaining flour; beat 2 to 3 min. or until mixture forms soft dough.