Ingredients:
2 egg whites, room temperature
1/8 t salt
Scant ¼ t cream of tartar
3 T powdered sugar
¾ C maple syrup
1 C unsalted butter
Directions:
- Beat egg whites, salt and cream of tartar until the mixture holds soft peaks. Slowly add sugar and continue to beat until mixture holds stiff peaks
- Add syrup to small sauce pan and boil until a candy thermometer reaches 238°F (soft ball stage)
- Remove from heat and immediately pour into egg whites with mixer running at high speed. Continue to beat until cool, about 6 minutes. Do not move on to the next step if mixture is still warm!
- Slow mixer to medium speed. Add butter slowly, in 1 T chunks, beating thoroughly between additions. If butter appears to melt place mixer bowl in ice bath for 10 seconds to cool. Continue beating frosting until smooth