You can substitute the fresh almond paste with instant almond paste or almond extract. If using extract, start with 1-2 teaspoons and adjust to taste. Be careful with pre-made pastes as they may already contain sugar.
For added texture and flavor, fold in chopped fruits like cherries or nuts like walnuts just before freezing.
Store the finished ice cream in an airtight container in the freezer for up to one month.