The Best Red Velvet Churros (Baked)

Bahan-bahan (36 porsi)

• 1 cup all-purpose flour
• 2 teaspoons unsweetened cocoa powder
• 1/3 cup reduced-fat butter
• 2 tablespoons olive oil
• 1 cup water
• 1/4 cup brown sugar
• 2 teaspoons red food colouring (or 1 tablespoons beetroot juice)
• 1/2 teaspoon salt
• 1 teaspoon pure vanilla extract
• 1 egg (large, at room temperature)
• 1/4 cup caster sugar