1 Tbsp. cornstarch (for thickening) = 2 Tbsp. flour (approximately).
1 c. sifted all-purpose flour = 1 c. plus 2 Tbsp. sifted cake flour.
1 square chocolate (ounce) = 3 or 4 Tbsp. cocoa plus 1/2 Tbsp. fat.
1 tsp. baking powder = 1/4 tsp. baking soda plus 1/2 tsp. cream of tartar.
1 c. bottled milk = 1/2 c. evaporated milk plus 1/2 c. water.
1 c. sour milk = 1 c. sweet milk into which 1 Tbsp. vinegar or lemon juice has been stirred; or
1 c. buttermilk.
1 c. sweet milk = 1 c. sour milk or buttermilk plus 1/2 tsp. baking soda.
1 c. cream, sour, heavy = 1/3 c. butter and 2/3 c. milk in any sour-milk recipe.
1 c. cream, sour, thin = 3 Tbsp. butter and 3/4 c. milk in sour-milk recipe.
1 c. molasses = 1 c. honey.
