Ice cream for floats

Since we were having a party, I thought root beer floats would be a good idea. Here's my refined recipe for vanilla ice cream with a light custardy flavor. Perfect for floats.

4 cups half and half

1 3/4 cups white sugar

2 Tbsp corn starch

2 more cups half and half

2 cups heavy cream

2 tsp vanilla extract

Bring 2 cups half and half to scalding (200 degrees) and while it's heating up mix in the sugar.

Add the corn starch mixed in a bit of cold half and half.

Whisk to thicken slightly, being careful not to boil.

Remove from heat, cool a bit, and add the remaining half and half, cream, and vanilla.

Chill to near freezing and churn; then move to freezer to firm up.