Preheat oven to 425° Place the dough on a lightly floured piece of parchment paper on your counter. The parchment paper will make it easier to transfer the dough to a baking sheet. Sprinkle a little more flour on top of your dough and on your rolling pin. Roll the dough out to a 14 inch circle . It doesn’t have to be perfect.
Use a 10 inch lid of a pot, or a bowl, to mark a circle on your dough, which will be the border for spreading your frangipane and laying on your pears.
Using an offset spatula, spread the frangipane on the center of your dough, leaving about a 2 inch border all around.
Gently fan out your pears and place them on top of the frangipane. Start with 6 pear-half fans (three pears). Don't worry if some of the pear-halves break apart. You can just place them on the galette in a fan shape. No one will know.
Use the last 2 pear fan halves and break them apart to fill in the smaller gaps between full halves, until the entire circle is covered.
Fold the edges of your dough over the filling, kind of overlapping as you go around. Brush the exposed crust with egg wash (1 beaten egg with 1 teaspoon water) and sprinkle with sliced almonds or sparkling sugar, if desired
Bake at 425° for 40-50 minutes, or until your crust is a nice golden brown and your frangipane is puffy and peeking up between your pears. Remove from oven and cool on a wire rack for at least 15 minutes before slicing and serving.
If you like, brush the exposed pears slices with warm honey to give them a shine.