Creamy Chocolate Sauce That Won't Harden

With the heat off, add the cocoa powder and sweetened condensed milk to the saucepan.

Mix vigorously with a spatula until the cocoa powder is completely incorporated and there are no lumps.

Add the heavy cream to the mixture, still with the heat off.

Turn the heat on to medium-low and begin stirring continuously until the sauce thickens and starts to boil.

Stop cooking as soon as the sauce boils. For a thin sauce consistency (for ice cream or pancakes), turn off the heat and let it slightly cool down.

For cake frosting consistency, continue cooking until, when you run a spatula through it, the sauce momentarily separates but quickly comes back together.

Turn off the heat and stir the sauce for at least 2 minutes off the heat to ensure the final creaminess and allow it to cool slightly before use.

Use the sauce over the desired cake.