Oven baked ribs with potatoes

I didn't expect it to be so good!!!!!!
The meat is very tender and the potatoes melt in your mouth...Yumm!

What you need -
2 racks of pork ribs
5 medium potatoes
1 large onion, sliced

For marinade
2 tbs lemon juice
4 tbs mayonnaise
1 tbs Dijon mustard
1 teaspoon salt
1 tbs black pepper
1 teaspoon mixed herbs (any)

Wash the ribs and remove the white coating on the bottom side of the ribs, cut them the way you like.
 In a large skillet heat 2 tbs olive oil and fry the ribs on both sides 1-2 minutes on hight heat. Place the ribs in a big bowl and  add onion slices.
In a small bowl combine all the ingredients for the marinade and brush the ribs, then mix everything with your hands to make sure that onions and marinade cover the ribs.
Cover the bowl with plastic wrap and leave it for 30-50 min
Now, peel the potatoes and cut them into thin slices.  Don’t worry, if they are a little too thick.
Grease a deep baking dish and arrange a layer of potato slices.
Then put the layer of marinated ribs and onins on top and wrap it tight with foil.
Bake 2 hours at 400F.