Warm 1 cup pineapple juice until lukewarm
Mix the pineapple juice with 2 1/4 teaspoons active dry yeast and 1 tablespoon sugar
Let sit until foamy
Add 1/2 cup sugar, 1/2 cup melted butter, 2 eggs, 1 teaspoon salt, and 1 teaspoon vanilla extract
Stir in 4 to 5 cups all-purpose flour gradually
Knead until smooth and elastic
Place dough in a greased bowl and cover
Let rise until doubled in size
Punch down the dough
Divide into equal pieces and shape into rolls
Place rolls in a greased baking pan
Cover and let rise until puffy
Brush tops with melted butter
Bake at 350°F until golden brown
Brush with more melted butter after baking