Using a stand mixer with a dough hook, mix the flour, yeast, and salt on low speed until combined. Gradually pour in the pineapple mixture followed by the egg and vanilla.
Mix on low speed dough begins to come together, about 2 minutes. Increase the speed to medium-low and mix until the dough is no longer sticking to the sides of the bowl.
Turn the dough out onto a lightly floured surface and shape it into a ball. Place the dough in a lightly oiled bowl, cover with plastic wrap, and set in a warm place to rise until doubled.
Punch the dough down to deflate it and transfer it to a lightly floured work surface. Divide the dough into 15 equal size portions. Shape each portion into a smooth ball.