Easy Peanut Butter Frosting Recipe

Name: Easy Peanut Butter Frosting Recipe
Ingredients: 4 ounces unsalted butter (1 stick; 110g), soft but cool (about 65°F); 4 1/2 ounces commercial creamy peanut butter (1/2 cup; 125g) (see note); 1 ounce honey, corn syrup, or maple syrup (2 tablespoons; 30g); 1/4 teaspoon (1g) Diamond Crystal kosher salt; for table salt, use half as much by volume or use the same weight; 1 teaspoon (5g) vanilla extract, plus more if needed; 6 ounces powdered sugar (1 1/2 cups; 170g), preferably organic (see note)