This is the best all shortening buttercream recipe that I have tried!! I found it on the Wilton forum. I made a few little changes to it. It crusts really well for the Viva method. I hope you like and enjoy it!!
White As Snow Buttercream
1/2 cup cold water
1 tsp almond flavoring (or any flavoring you like)
1 tsp clear vanilla
1 tsp lemon juice
1 tsp butter flavoring
1 1/2 cups Crisco
1/4 tsp popcorn salt (I use the butter flavor popcorn salt from McCormick)
1 Tbsp meringue powder
2 Tbsp cornstarch
2 lbs powdered sugar
1. Pour flavorings and lemon juice into measuring cup, then add the water to equal 1/2 cup. Stir salt into water.
2. Cream the shortening then slowly add the water and cream together.
3. Add the meringue powder and cornstarch and mix well.
4. Add powdered sugar and beat until smooth and creamy.