Step 1

Prepare the blueberry sauce by adding the cornstarch to a saucepan.

Step 2

Add sugar.

Step 3

Now, stir in the water.

Step 4

Add the blueberries.

Step 5

Stir together then turn up the heat to bring it to a boil. Reduce heat to medium-low and simmer for a minute or two until a thick sauce forms.

Step 6

Remove from heat and gently stir in lemon juice.

Step 7

Once the sauce cools, pour into a sealable container, like a mason jar, and store in the fridge.