Begin by gathering your ingredients: 2 ripe bananas, 1 cup of whole milk, 3 tablespoons of sweetened condensed milk, and 1 teaspoon of vanilla extract. Slice the ripe bananas into smaller chunks for easier blending.

In a blender, combine the banana slices with the milk, sweetened condensed milk, and vanilla extract. Blend on high for about 30 to 45 seconds until silky smooth.

Taste your mixture to ensure the sweetness is to your liking. Add more sweetened condensed milk or honey if needed, and blend for an additional 10 seconds.

Pour your Korean banana milk into tall, chilled glasses. Add ice cubes if desired.

Optionally, garnish each glass with a slice of banana or a sprinkle of cinnamon for extra flavor.

Store any leftovers in a sealed jar in the refrigerator for up to 2 days. Shake well before serving again.