1 1/4 cups flour
1 1/2 tablespoons sugar
1 teaspoon baking powder
1/4 teaspoon baking soda
1/4 teaspoon salt
3 tablespoons chilled unsalted butter, diced
1/2 cup (packed) grated sharp Cheddar cheese (2 ounces)
1/2 cup (packed) grated Monterey Jack cheese (2 ounces)
1/2 cup grated Parmesan cheese (1 1/2 ounces)
2/3 cup chilled buttermilk

Preheat oven to 400 degrees F. Lightly butter a baking sheet. Whisk flour, sugar, baking powder, soda and salt in medium bowl to blend. Add butter and rub in with fingertips until mixture resembles coarse meal. Add all cheeses and toss to coat well. Gradually mix in buttermilk. Drop dough by
1/4 cupfuls onto prepared sheet, spacing 2 inches apart. Bake biscuits until golden on top, about 16 minutes.