How is the yellow and sweet part of Kenji pineapple bread made? Pineapple paste?

I haven't eaten Kengee's bread, but the yellow and sweet part of ordinary pineapple bag is mixed with eggs, sugar and butter.

There is a way to do this:

Low gluten powder 125g

Sugar 55g.

40 grams of unsalted butter (softened at room temperature).

7 grams of milk powder

Egg yolk 1

Evaporated milk 1 tablespoon

Condensed milk 1 teaspoon

Edible ammonia powder 1/4 teaspoons less.

Baking powder 1/4 teaspoons

Stir the butter with an electric blender until smooth, add sugar and continue stirring until white and fluffy.

Add milk powder, egg yolk, evaporated milk, condensed milk and baking powder and mix well. Sift in flour and stinky powder and mix well. The dough is wet and sticky at this time. Roll the dough into long strips with plastic wrap. Freeze in the refrigerator for 30 to 40 minutes. After the dough hardens, it can be taken out for use at any time. The recipe comes from Christine's simple recipe.