Peel and chop potatoes. Shoot for 1/2" x 1/2" pieces, for optimal cooking. Boil for 10-15 minutes, until semi-soft. Strain and set aside once finished.
Sauté onions over medium-high heat for 3-5 minutes.
Add red curry paste, curry powder, turmeric, red pepper flakes, ginger powder, coriander, sea salt, and sriracha. Heat for 10 minutes while stirring frequently, until mixture reaches a low boil.
Add coconut milk and boiled potatoes. Bring mixture to a boil and cook for 15-20 minutes until it begins to thicken.
Cover and reduce heat to a simmer for 10 minutes, stirring occasionally.
Add raw shrimp and cook for 3 more minutes, being careful not to overcook the shrimp.
Serve alone or over basmati rice.