EatSmarter exclusive recipe

Red Onion Tartlets

with Thyme Shortbread
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Red Onion Tartlets

Red Onion Tartlets - Spicy mini tarts for finger food—ideal for a party buffet

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45 min.
ready in 2 h. 10 min.
Ready in

Healthy, because

Even smarter

Nutritional values

Onions contain a variety of have important nutrients including high levels of sulfur compounds, which can neutralize free radicals, help lower blood sugar levels, and boost the immune system.  

If you don't want to use alcohol in this recipe, you can substitute it with 25 milliliters of balsamic vinegar mixed with 50 milliliters of unsweetened grape juice. 

1 serving contains
(Percentage of daily recommendation)
Calorie271 kcal(13 %)
Protein4 g(4 %)
Fat14 g(12 %)
Carbohydrates30 g(20 %)
Sugar added3 g(12 %)
Roughage3 g(10 %)
Vitamin A0.1 mg(13 %)
Vitamin D0.2 μg(1 %)
Vitamin E0.6 mg(5 %)
Vitamin B₁0 mg(0 %)
Vitamin B₂0 mg(0 %)
Niacin1.2 mg(10 %)
Vitamin B₆0.1 mg(7 %)
Folate11 μg(4 %)
Pantothenic acid0.2 mg(3 %)
Biotin2.8 μg(6 %)
Vitamin B₁₂0 μg(0 %)
Vitamin C3 mg(3 %)
Potassium101 mg(3 %)
Calcium34 mg(3 %)
Magnesium14 mg(5 %)
Iron1 mg(7 %)
Iodine3 μg(2 %)
Zinc0.5 mg(6 %)
Saturated fatty acids7.8 g
Uric acid27 mg
Cholesterol36 mg
Development of this recipe:


5 sprigs
5 ounces
9 ounces
1 ½ pounds
1 tablespoon
¼ cup
2 tablespoons
dried Beans (for blind baking)

Kitchen utensils

1 Pot, 1 Baking sheet, 1 Bowl, 1 Measuring cups, 1 Cutting board, 1 Small knife, 1 Fork, 1 Tablespoon, 1 Wooden spoon, 1 Cookie cutter ring, 1 Rolling pin, 1 Hand mixer, 1 Parchment paper, 1 Plastic wrap, 16 Tartlet molds (about 6 cm diameter), 1 Large knife

Preparation steps

Red Onion Tartlets preparation step 1

Rinse thyme, shake dry and pluck leaves. Set some aside to use as a garnish, finely chop the rest.

Red Onion Tartlets preparation step 2

Mix together small pieces of cultured butter with flour, chopped thyme and 1 pinch of salt using a mixer equipped with a dough hook.

Red Onion Tartlets preparation step 3

Add 5-6 tablespoons of water and knead quickly to a smooth shortbread dough. Press dough flat, wrap in plastic wrap and refrigerate for 1 hour. Meanwhile, cut parchment paper into 16 circles of about 2-inch diameter.

Red Onion Tartlets preparation step 4

Peel the onions and cut into very thin strips.

Red Onion Tartlets preparation step 5

Heat the oil in a heavy pot and sauté the onions over medium heat while stirring until light brown, about 15 minutes.

Red Onion Tartlets preparation step 6

Deglaze onions with port wine. Season to taste with salt and pepper and add honey. Cook on low heat for another 5 minutes.

Red Onion Tartlets preparation step 7

Roll out the dough approximately 1/4-inch thick on a floured work surface.

Red Onion Tartlets preparation step 8

Cut out approximately 3-inch diameter circles of dough and place on a baking sheet, dusted with flour. There should be a total of 16 disks of dough.

Red Onion Tartlets preparation step 9

Place each circle in a tartlet mold and firmly press several indentions with a fork.

Red Onion Tartlets preparation step 10

Flatten sides and cut excess. Put the parchment circles on top and fill with dried beans.

Red Onion Tartlets preparation step 11

Bake tartlets in a preheated oven at 400°F on the 2nd shelf from the bottom for about 12 minutes. Remove from oven and remove beans and paper.

Red Onion Tartlets preparation step 12

Fill tartlets with onions and continue baking for another 12 minutes. Remove from oven and garnish with thyme. Serve warm.