Prepare the Ingredients: Wash and hull the berries as necessary if you’re using fresh ones, especially strawberries. Thawing is not necessary for frozen berries; they will cook down wonderfully in the pan.
Cook the berries: Put your water, lemon juice, sugar, and mixed berries in a medium saucepan. Put the pan over medium heat and cook for 8 to 10 minutes, stirring now and again. The decomposition of the berries will release their liquids, creating a colorful sauce. (Note: To keep the berries from adhering to the pan’s bottom, stir them lightly)
Mix the sauce: Remove the skillet from the heat after the mixture is boiling and the berries have softened. Let it cool a little. Next, either transfer the mixture to a standard blender or use an immersion blender right in the pot. Blend until it’s smooth.
Make Smoothness a Priority: Pour the combined ingredients into a basin and strain it through a fine-mesh sieve for a smooth coulis. Press the liquid through with a spoon, removing the pulp and seeds. This stage guarantees a silky, expertly prepared sauce.
Let it cool down and store it: Transfer the coulis to an airtight container after allowing it to cool to room temperature. It will last up to a week in the fridge. As it cools, the sauce will become somewhat thicker, making it ideal for dipping or drizzling. (Note : If you prefer a thinner sauce, whisk in a tablespoon of water before serving)