Pad thai is extremely easy to make.  Tamarind is a little hard to find in the average grocery store, but it is readily available online.  When I lived in Thailand, I ate this marvelous dish almost every day… it was made fresh at the end of my street.  Imagine my horror when I returned to the US to find that no restaurant seems capable of making it authentically; even more horrific: an authentic recipe is nearly impossible to find. So here it is. This is how they made it on my street.

Serves 2
10-20 minutes from start to yumminess, depending on the starting state of your shrimp and noodles

Pad thai sauce:

1/2 tsp tamarind paste
1 tbsp fish sauce
1-1 1/2 tbsp soy sauce (go for the smaller quantity and add more if you wish before serving)
1/4 tsp red pepper flakes
1 tsp palm sugar (or brown sugar)

Mix the above ingredients until the tamarind is dissolved.

Prepare the shrimp and noodles and chop the veggies and peanuts before beginning the next step.  The whole dish comes together very quickly.

1 tbsp sesame oil
14 oz of cooked, drained rice noodles (no thinner than vermicelli)
1 c salad shrimp, cooked
1 tsp minced garlic
2 eggs
handful chopped spring onions
handful of fresh bean sprouts
1/4 c chopped cilantro
1/2 c chopped peanuts
lime juice, to taste

Heat the sesame oil in a wok or large pan over medium heat.  Add the noodles and the sauce, stir until combined, then add the shrimp and garlic.  Cook two minutes on medium heat.  Crack the two eggs over the top of the sizzling concoction.  Use a spatula to combine the noodle mixture and eggs, and allow it to cook, covered, for two minutes.

Once the egg is cooked, add the spring onions, bean sprouts, cilantro and peanuts and stir thoroughly.  Serve on plates and squeeze lime juice over the top of each portion.
Just fyi, I usually make two small changes to the original recipe: (1) I chop half a red pepper and sauté it in the pan for two minutes before adding the noodles;
(2) I crush the peanuts in a mortar and pestle with the sugar and red pepper flakes, and add those three ingredients together before serving, mixing thoroughly first, of course.

As you like.  Enjoy.