Mom & Aunty Ann's Kauai-Style Portuguese Sweet Rolls - Uwajimaya

Ingredients

• 1 small russet potato
• 1 1/3 cup water
• 1/4 teaspoon sugar
• 1 envelope (1/4 ounce) dry active yeast
• 1/4 cup evaporated milk
• 1 teaspoon salt
• 1/3 cup butter
• 3 large eggs
• 2/3 cups granulated sugar
• 1/4 teaspoon lemon extract
• 2-3 drops yellow food coloring
• 5-5 1/2 cups all-purpose flour (divided)
• extra softened butter for brushing on rolls after baked