Step 1

Thaw mango overnight in fridge or defrost mango in microwave, as needed.

Step 2

Thoroughly puree mango in blender.Strain puree into heavy pot to remove any fibers.

Step 3

Add sugar, lime juice, and egg yolks to pot and whisk. Turn heat to medium low and whisk constantly to ensure the mixture heats evenly.

Step 4

Whisk for 7-10 minutes until mixture thickens to the point that it leaves "streaks" from the whisk.

Step 5

Remove it from heat.

Step 6

Cut butter into five or six pieces. Add them one or two at a time, whisking until incorporated. Repeat with remaining pieces.

Step 7

Carefully pour into a liquid measuring cup, then pour into a glass jar. Place in fridge and store for up to two weeks.