There is NO cooking involved here.
2 large eggs
1 1/4 cup maple syrup
2 1/2 cups heavy cream
1/4 cup milk 9full fat. You try this with skim? Fuck you)
Whisk the eggs until fluffy, then whisk in the maple syrup. It's a lot, because the maple is both a flavor as well as a sweetener, replacing the sugar which would normally be used. Once the maple is incorporated, add the heavy cream and then the milk. Place into the ice cream maker of your choice. Feel free to add chopped walnuts for maple walnut ice cream.
Note that because of the amount of maple, you get a strong maple flavor but a very sweet ice cream. The result is an ice cream that you will want 1-2 scoops and no more. But that scoop or two is just maple goodness.