Aunt Stella-Style Baked Potato Square Cookies

• 60 grams Sweet potato
• 50 grams Margarine
• 50 grams Caster sugar
• 100 grams Cake flour
• 1 Egg yolks for glazing
• 1 Black sesame seeds

1. Peel the skin from the sweet potato, soften by boiling or heating in the microwave, and mash.
2. Add margarine and sugar to a bowl and stir.
3. Add sweet potato from Step 2 and mix.
4. Mix in the sifted cake flour.
5. Divide into 2 equal portions and wrap.
6. Mold into rectangular sticks, and chill in the fridge overnight.
7. Slice into 8 mm ~ 1 cm pieces.
8. Line up on a cookie sheet, and brush the surface with egg yolk.
9. Shake black sesame into the center of the cookies.
10. Bake them in a 355F/180C oven for 15-20 minutes, until they turn a delicious golden brown.
11. They are done.
12. They are really fragrant right after baking.

sweet potato, margarine, sugar, flour, egg yolks, black sesame seeds

Taken from cookpad.com/us/recipes/170889-aunt-stella-style-baked-potato-square-cookies (may not work)