Steps:

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Step1: First, cook and peel the potatoes, use a mixer to mash the potatoes.

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Step2: Mixing the butter and sugar until it turns white, add all the ingredients.

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Step3: Put 10 egg yolks, 2 whole eggs, condensed milk, and coconut milk.

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Step4: After mixed everything well, add the mashed potatoes then add the flour.

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Step5: After the flour is fully mixed, place it in the oven 45 minutes with medium heat, ready to serve.