Step 1: Combine Milk and Sugar
- In a medium-sized saucepan, combine the whole milk and granulated sugar.
- Place the saucepan over medium-low heat and stir until the sugar dissolves completely.
Step 2: Heat to Reduce
- Bring the mixture to a gentle simmer, not a boil.
- Stir occasionally to prevent the milk from scorching.
- Reduce the heat to low and allow the mixture to simmer gently for about 35–40 minutes.
Step 3: Look for the Right Consistency
- The milk will thicken as it reduces and take on a light golden color.
- Once the mixture has reduced to about half its original volume and has a syrupy consistency, remove it from the heat.
Step 4: Add Butter and Vanilla
- Stir in the unsalted butter until melted and fully incorporated.
- If desired, add the vanilla extract for a subtle flavor boost.
Step 5: Cool and Store
- Let the sweetened condensed milk cool to room temperature. It will continue to thicken as it cools.
- Transfer it to an airtight container and refrigerate for up to 2 weeks.
Tips for Success
- Prevent Scorching: Use a heavy-bottomed saucepan to distribute heat evenly.
- Watch the Heat: Avoid boiling; high heat can cause the milk to curdle.
- Substitutions: For a dairy-free version, use canned coconut milk and replace the sugar with your preferred sweetener.
How to Use Homemade Sweetened Condensed Milk
- Drizzle over fresh fruit or pancakes.
- Stir into coffee or tea for a creamy, sweet flavor.
- Use in recipes like key lime pie, fudge, or tres leches cake.
Making your own sweetened condensed milk is not only cost-effective but also allows you to control the ingredients. Enjoy crafting this kitchen staple at home!