Any idea where I can find choco flan in Houston or Katy?

My sister and I love Mexican dessert but we wanted to try some new desserts other than Churro or Tres Leches cake. We love a solid flan but does anyone know where we can find Choco-flan ? We had some in NYC at the legendary NewYorkina (R.I.P) and now we can't seem to find it anywhere.