If you are lucky enough to be in Bratislava and want GF then visit this lovely little bistro. Everything is GF and lacto free. It is situated in the city centre with cozy space and kindly people. Everything is homemade. You can try cake, coffee with almond milk or dishes (lunch or Soup). Reservation is needed. They also distribute cakes to the local coffeeshops.
Best gluten free pastry shop you can find. Everything is gluten and dairy free, sweetened just with coconut sugar or maple syrup. Lot of cakes are also vegan. Everything is housemade there, they make great lunch on tuesdays and fridays and soup on wednesdays and thursdays. It is real gluten free heaven.