Preheat oven to 350F (175C).

Toast sesame seeds in a pan at 350F (175C) until golden brown.

In a blender, mix vegetable oil, margarine, white wine, and sugar until fluffy and white.

In a bowl, combine self-raising flour and toasted sesame seeds.

Create a well in the center of the flour mixture and pour in the blended oil mixture.

Knead until a soft dough forms.

Shape the dough into cookies, creating a small well in the center of each.

Fill the well with jam.

Brush each cookie with egg white.

Garnish with black sesame seeds.

Place cookies on a buttered baking pan.

Bake at 380F (200C) for approximately 20 minutes, or until golden brown.

Let the cookies cool completely.

Store in an airtight container.