Is the word molho the same in Brazilian and European Portuguese?

Yes

The word "molho" carries the same meanings in both Brazilian and Continental Portuguese: it can refer to a liquid sauce (e.g., molho de tomate) or a cluster/bunch of items (e.g., molho de chaves). There are no differences in spelling, grammar, or fundamental meaning. The only difference is pronunciation:

• In Brazilian Portuguese, the final "o" is typically pronounced as a clear /u/ sound.
• In Continental Portuguese, the final "o" is much more reduced, often sounding like a very short, nearly silent /ɨ/ or /u/.

Brazilian Portuguese Examples

1. Eu amo molho de tomate na massa. (I love tomato sauce on pasta.)
2. Onde estão minhas chaves? Não encontro o molho. (Where are my keys? I can't find the bunch.)
3. Este molho está muito picante. (This sauce is very spicy.)
4. Você pode fazer um molho de alho? (Can you make a garlic sauce?)
5. Coloque um pouco de molho na carne. (Put a little sauce on the meat.)

Continental Portuguese Examples

1. Eu adoro molho de tomate na massa. (I love tomato sauce on pasta.)
2. Onde estão as minhas chaves? Não encontro o molho. (Where are my keys? I can't find the bunch.)
3. Este molho está muito picante. (This sauce is very spicy.)
4. Podes fazer um molho de alho? (Can you make a garlic sauce?)
5. Deita um pouco de molho na carne. (Pour/put a little sauce on the meat.)