Lemon Kefir Ice Cream

From Chocolate and Zucchini.
Ingredients:
1 2/3 c. (400 ml) kefir
Zest of a large lemon
1/4 c. (60 ml) lemon juice (the lemon listed above should yield that amount, but get a second one just in case)
1/3 c. plus 2 Tbsp. (130 grams) honey

Combine all the ingredients in a mixing bowl and whisk until blended. Cover, refrigerate for an hour until well chilled, and churn in your ice cream maker according to the manufacturer's instructions.
Makes about 1/2 quart (1/2 liter).