In a mixing bowl, beat 1 cup softened unsalted butter (or shortening for a dairy-free option) until creamy.
Add 2 ½ cups of the dry mix gradually, beating on low to combine.
Add 3-4 tablespoons of liquid (milk, heavy cream, or flavored syrups) to achieve the desired consistency.
Whip for 2-3 minutes until fluffy.
Mix 1 cup of the dry mix with 2-3 tablespoons of water, milk, or citrus juice, whisking until smooth.
Adjust liquid as needed for drizzling or spreading.
