Homemade Bisquick-Like Mix

I am making a recipe which calls for Bisquick.  I don't have any, so I found a recipe. (besides, I like to cook homemade)   If the recipe comes out,  I will print it this afternoon.  I am making
Not So Sorry Cake.  (I will explain later)

6 cups all-purpose flour, sifted
3 tablespoons baking powder
1 tablespoon salt
1/2 cup cold unsalted butter

• Measure the sifted flour, baking powder and salt in a large bowl.  Use a wire whisk to blend fully.
• Cut cold butter into small pieces and blend until thoroughly incorporated.
• **May be stored refrigerated in an airtight container for up to 4 months.

-Queenie Cuisine