Start with a cube. Give it a Subdivision Surface Modifier (Level 2) and a Cast Modifier with the Factor set to 1. Apply them both in top to bottom order. This will give you a "round cube".
Select the top half of faces and delete them.
Select the top ring of vertices - select every other by using Checker Deselect
Move the selected vertices "down" on the Z-Axis, and then scale them in slightly to make them match the curvature of the rest of the "bowl"
Add a Solidify Modifier and another Subdivision Surface modifier to make things rounded. Shade smooth to make it smoother:
If you want more definition in the edges of the bowl, add a Bevel Modifier between the Solidify and Subdivision Surface Modifiers. You can play with some of these values to define slightly different "shapes" to the edges. I recommend increasing the bevel angle to 31 so it doesn't bevel the edges running towards the bottom center of the bowl: