How to Make the Best Blueberry Sauce for Cookies and Pies!? We housewives always strive for a good taste of fruit topping, and we need it for making cakes, but to make cakes much tastier, here are a few tips and recipes for blueberry sauce. BLUEBERRY SAUCE For regular Blueberry sauce: 2 cups blueberries (fresh or frozen) 2-4 Tbsp lemon juice 3-5 Tbsp sugar For a thicker Blueberry sauce: 1-2 tsp cornstarch 1-2 Tbsp good blueberry jam Preparation: For Regular Blueberry sauce Pu