Muffin Recipe With Passion Fruit

Ingredients (20)

• 1/2 cup (4 ounces) butter, softened
• 1 cup sugar
• 1 cup plain yogurt, at room temperature
• 2 large eggs, at room temperature
• 1 cup canned crushed pineapple, drained and chopped
• 1 lime, juiced
• 4 passion fruits, or 3/4 cup frozen passion fruit pulp
• 3 cups all-purpose flour
• 1 tablespoon baking powder
• 2 teaspoons salt
• 1 teaspoon pure vanilla extract
• 1/2 cup light brown sugar, packed
• 1/4 cup rolled oats
• 1/4 cup finely chopped toasted Brazil nuts
• 3 tablespoons butter, slightly softened
• 2 cups confectioners' sugar, sifted
• 2 tablespoons butter, melted and cooled
• 4 to 5 tablespoons passionfruit pulp
• 1/2 teaspoon pure vanilla extract
• 1 pinch salt