Homemade Strawberry Vanilla Bean Ice Cream
Return the custard mixture to the saucepan over low heat.
Stir constantly with a wooden spoon until it thickens enough to coat the back of the spoon (170-175°F on a thermometer).
Remove from heat and strain through a fine-mesh sieve into a bowl.
Stir in vanilla extract, cover, and refrigerate for at least 4 hours or overnight.