1 cup Hi Ratio Shortening
2 Tbsp Meringue Powder
1 tsp Pure Vanilla Extract
1 tsp Butter flavoring
1/4 cup Whole Milk, plus a few teaspoons for desired consistency
2 lbs Powdered Sugar, sifted

Place shortening, meringue powder, flavorings and milk into bowl of stand mixer. Start on low speed and combine thoroughly.
Add 1/4 cup to 1/2 cup powdered sugar at a time, combining thoroughly between additions, until all is combined. Scrape down sides of bowl and mix again on low to medium speed. Be sure not to whip in too much air.